{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["hyponym of", "used for", "conjunction"], "input": "Global registration is achieved by combining a graph-based technique -- that exploits the topological structure of the sequence induced by the spatial overlap -- with a bundle adjustment which uses only the homographies computed in the previous steps ."}
{"hyponym of": [], "used for": [{"subject": "graph-based technique", "object": "Global registration"}, {"subject": "graph-based technique", "object": "topological structure"}, {"subject": "bundle adjustment", "object": "Global registration"}, {"subject": "homographies", "object": "bundle adjustment"}], "conjunction": [{"subject": "graph-based technique", "object": "bundle adjustment"}]}